Pencil.



J. A. HOLLENBERGER.

PENCI L.

APPLICATION FILED JULY 18, I918.

Patented Mar. 25, 1919.

Swan/6oz YZOZ ZanZer JOHN A. HOLLENBEBTGER, or nnennsrown, MARYLAND.

PENCIL.

Specification of Letters Patent.

Patented Mar. 25, 1919.

Application filed July 18, 1918. Serial No. 245,535.

To all whom it may concern:

Be it lmown that 1, JOHN A. HOLLENBER- GER, a citizen of the United States, residing at Hagerstown, in the county of Washington and State of Maryland, have invented certain new and useful Improvements in Pencils; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable Others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new anduseful improvements in pencils, the provision of means for removing the lead forward within the casing.

The invention comprises various details of construction, combinations and arrangements of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claim.

My invention is illustrated in the accompanying drawings which, with the letters of reference marked thereon, form a part of this application and in which:

Figure 1 is a sectional view longitudinally through a pencil, made in accordance with my invention.

-Fig. 2 is a sectional through the pencil, and

Fig. 3 is a view in elevation showing the parts disassembled. I

Reference now being had to the details of the drawings by letter:

A designates a hollow cylindrical barrel ortion within which a split shell B of metal orming a cartridge is adapted to telescope,

and which is adapted to contain pencil leads, said shell carrying an erase G. A tapering cap D has a contracted end with a slit E formed therein and through which lead is adapted to be fitted. Said cap has an annular rib having swiveled connection with one end of the barrel portion, making access to the interior thereof impossible without destroying the pencil, and hence producing a device whereby the contents may not be easily tampered with. A plug H has a split shell N fitted over a contracted portion view transversely thereof, the end of the shell N being provided with teeth securely hold the parts together.

which engage the plug to Said plug and especially in the ,shell N, which thrown out to position by is of such a diameter, and made of any suit able material such as Wood and held in place by means of a pin 0 passing through the shell, plug and barrel portion, and serves to hold the plug from rotation within the barrel portion. The outer end of the shell is adapted to bear against the tapering end of the cap and a space intervenes between the marginal edges of the shell N. A coiled wire R is mounted within the shell N and one end of the coil has an end extending through an aperture P formed in the cap near its tapering end, and serves as means for .causing the wire A follower T is mounted to have a longitudinal movement within the coil and is provided with a laterally extending end passing between the convolutions of the coil and also between the longitudinal edges of edges serve to prevent the coil having a movement independent of the shell within which it is contained and also of the barrel portion. The convolutions of the coil at its inner end are closed, or nearly so, and which will serve as a means for limiting the movement of the follower in one direction, as the outwardly projecting end of the follower cannot move between the said closed convolutions.

By this provision, it will be impossible to strain the coil by continued turning of the to rotate with the cap.

its limit in one direction.

By the provision of a device embodying the features of my invention, it will be noted.

that a simple and efiicient pencil is provided, so arranged that the lead when not in use may be pushed back into the cap and barrel, and when desired to be used, may be the rotary movement of the barrel, while the cap is held stationary.

What I claim to be new is:

A pencil, comprising a hollow barrel portion, a tapering cap swiveled thereon and having an apertured slitted end, a plug fitted within the barrel portion and havin a con tracted extension, a cylindrical split shell fitted over said extension and its outer en engaging the tapering wall of said cap, a coil of wire mounted within said shell and abutting against the extension of said plug, the outerend of the coil extending through an aperture in the cap and having ad]acent to its ends convolutions which are 1n contact with each other, a follower mounted within said-coil and having its inner end outwardly In testimony whereof I hereunto aflix my beer}; and ixtrinding ghlmllgla the s fmcfi inten signature in presence of two witnesses.

iateteonituinae esoteslit shell, the inner nd of the oil, which is re- I HOLLENBERGER' 5 silient, adapted to spring by said outwardly Witnesses:

' bent end of the foliower as the cap and pen- ELIAS S. HEATH, oil are rotated in opposite directions. ALLEN YINGLING.- 

